Earthquake with magnitude of Md 2.3 on date 18-01-1996 and time 03:55:43 (UTC) in region 9 km SW Montaione (FI)

A magnitude Md 2.3 earthquake occured in region: 9 km SW Montaione (FI), on

  • 18-01-1996 03:55:43 (UTC)
  • 18-01-1996 04:55:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4820, 10.8750 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Montaione FI 9 3700 3700
Volterra PI 9 10519 14219
Gambassi Terme FI 9 4870 19089
Lajatico PI 12 1336 20425
San Gimignano SI 14 7820 28245
Montecatini Val di Cecina PI 14 1749 29994
Peccioli PI 14 4807 34801
Certaldo FI 15 16121 50922
Castelfiorentino FI 16 17504 68426
Palaia PI 16 4612 73038
Terricciola PI 17 4627 77665
Chianni PI 19 1392 79057
Capannoli PI 20 6381 85438

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km SW of Scandicci (50609 inhabitants)
41 Km W of Siena (53903 inhabitants)
44 Km SW of Firenze (382808 inhabitants)
46 Km SE of Pisa (89158 inhabitants)
46 Km E of Livorno (159219 inhabitants)
48 Km SW of Prato (191150 inhabitants)
50 Km SE of Lucca (89046 inhabitants)
50 Km S of Pistoia (90315 inhabitants)
66 Km SE of Viareggio (62467 inhabitants)
81 Km W of Arezzo (99543 inhabitants)
83 Km N of Grosseto (82087 inhabitants)
85 Km SE of Massa (69479 inhabitants)
91 Km SE of Carrara (63133 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
Md 2.3
ML-VAX 1.5
1996-01-18
03:55:43
43.482 10.875 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 240359
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1996-01-18 03:55:43 ± 0.929
Latitude 43.4820 ± 0.0678
Longitude 10.8750 ± 0.0330
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 240359

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 7990.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 233
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00308
Epicentral distance of station farthest from the epicenter (degree) 0.00801
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 240359
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:47:29

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 240359
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.BDI.Z. 1996-01-18T03:56:03.52 10.0 undecidable manual SG 340 0.6105 -1.31 0.1
--.GU9.Z. 1996-01-18T03:56:02.20 10.0 undecidable manual PG 346 0.888 1.16 0.3
--.ZC9.Z. 1996-01-18T03:56:00.99 10.0 undecidable manual PG 4 0.8769 0.5 1
--.SFI.Z. 1996-01-18T03:55:59.22 10.0 undecidable manual PG 58 0.8214 -0.3 1.3
--.PGD.Z. 1996-01-18T03:55:58.60 10.0 undecidable manual PG 56 0.7215 0.26 1.4
--.CRE.Z. 1996-01-18T03:55:58.14 10.0 undecidable manual PG 79 0.7881 -0.85 0.6
--.BDI.Z. 1996-01-18T03:55:56.13 10.0 undecidable manual PG 340 0.6105 0.44 1.3
--.PII.Z. 1996-01-18T03:55:55.46 10.0 undecidable manual SG 313 0.3441 -0.86 0.3
--.PII.Z. 1996-01-18T03:55:50.48 10.0 positive manual PG 313 0.3441 -0.3 2.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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